SettingsElectrical wiring
3-way lamp
A 3-way lamp is a lamp that uses a 3-way bulb to produces three levels of light in a low-medium-high configuration.
A 3-way lamp is a lamp that uses a 3-way bulb to produces three levels of light in a low-medium-high configuration.
AC power plugs and sockets
AC power plugs and sockets are devices that allow electrically operated devices to be connected to the primary alternating current power supply in a building.
AC power plugs and sockets are devices that allow electrically operated devices to be connected to the primary alternating current power supply in a building.
Aluminium Conductor Steel Reinforced
Aluminum Conductor Steel Reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminum Conductor Steel Reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminium conductor steel reinforced
Aluminum conductor steel reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminum conductor steel reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminium conductor steel-reinforced cable
Aluminum conductor steel-reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminum conductor steel-reinforced cable is a specific type of high-capacity, high-strength stranded cable typically used in overhead power lines.
Aluminum wire
Aluminium wire is a type of wiring used in houses, power grids, and airplanes.
Aluminium wire is a type of wiring used in houses, power grids, and airplanes.
Ampacity
Ampacity is a portmanteau for ampere capacity defined by National Electrical Safety Codes, in some North American countries.
Ampacity is a portmanteau for ampere capacity defined by National Electrical Safety Codes, in some North American countries.
Bootleg ground
A bootleg ground is an electrical ground that is wired from the neutral side of a receptacle or light fixture in an older 2-wire home.
A bootleg ground is an electrical ground that is wired from the neutral side of a receptacle or light fixture in an older 2-wire home.
Breaking capacity
Breaking capacity or interrupting capacity is the current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric ar...
Breaking capacity or interrupting capacity is the current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric ar...
BS 7671
British Standard BS 7671 "Requirements for electrical installations" is the national standard in the United Kingdom for low voltage electrical installations.
British Standard BS 7671 "Requirements for electrical installations" is the national standard in the United Kingdom for low voltage electrical installations.
Canadian Electrical Code
The Canadian Electrical Code, CE code, or CSA C22.1 is a standard published by the Canadian Standards Association pertaining to the installation and maintenance of electrical equipme...
The Canadian Electrical Code, CE code, or CSA C22.1 is a standard published by the Canadian Standards Association pertaining to the installation and maintenance of electrical equipme...
Ceiling rose
In the United Kingdom and Australia, a ceiling rose is a decorative element affixed to the ceiling from which a chandelier or light fitting is often suspended.
In the United Kingdom and Australia, a ceiling rose is a decorative element affixed to the ceiling from which a chandelier or light fitting is often suspended.
Cellular floor raceways
Cellular floor raceways are electrical wiring ducts or cells made from steel floor deck that serve as structural formwork for placement of concrete floor slabs and also as wire and cable racewa...
Cellular floor raceways are electrical wiring ducts or cells made from steel floor deck that serve as structural formwork for placement of concrete floor slabs and also as wire and cable racewa...
Circuit breaker
A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.
Circuit Total Limitation
Circuit Total Limitation is one of the present day standards for electrical panels sold in the United States according to the National Electrical Code.
Circuit Total Limitation is one of the present day standards for electrical panels sold in the United States according to the National Electrical Code.
Circuit total limitation
Circuit total limitation is one of the present-day standards for electrical panels sold in the United States according to the National Electrical Code.
Circuit total limitation is one of the present-day standards for electrical panels sold in the United States according to the National Electrical Code.
Consumer mains wiring
Domestic consumer mains wiring refers to the wiring in the house hold premises and low voltage installations.
Domestic consumer mains wiring refers to the wiring in the house hold premises and low voltage installations.
Consumer unit
A consumer unit is a type of distribution board (a component of an electrical power system which divides an electrical power feed into subsidiary circuits).
A consumer unit is a type of distribution board (a component of an electrical power system which divides an electrical power feed into subsidiary circuits).
DC block
DC Blocks are coaxial components that prevent the flow of audio and direct current (DC) frequencies while offering minimum interference to RF signals.
DC Blocks are coaxial components that prevent the flow of audio and direct current (DC) frequencies while offering minimum interference to RF signals.
Distribution board
A distribution board (or panelboard) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or ci...
A distribution board (or panelboard) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or ci...
Earthing system
In electricity supply systems, an earthing system defines the electrical potential of the conductors relative to the Earth's conductive surface.
In electricity supply systems, an earthing system defines the electrical potential of the conductors relative to the Earth's conductive surface.
Electric service panel
A distribution board (or panelboard) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or ci...
A distribution board (or panelboard) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or ci...
Electrical conduit
An electrical conduit is an electrical piping system used for protection and routing of electrical wiring.
An electrical conduit is an electrical piping system used for protection and routing of electrical wiring.
Electrical contractor
An electrical contractor is a business person or firm that performs specialized construction work related to the design, installation, and maintenance of electrical systems—a $130 billion indust...
An electrical contractor is a business person or firm that performs specialized construction work related to the design, installation, and maintenance of electrical systems—a $130 billion indust...
Electrical system design
Electrical system design is the design of electrical systems.
Electrical system design is the design of electrical systems.
Electrical wire interconnection system
EWIS, or electrical wire interconnection system, refers to the wiring system and components for a complex system.
EWIS, or electrical wire interconnection system, refers to the wiring system and components for a complex system.
Electrical wiring
Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices.
Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices.
Electrical wiring in North America
Electrical wiring in North America follows regulations and standards for installation of building wiring.
Electrical wiring in North America follows regulations and standards for installation of building wiring.
Electrical wiring in the United Kingdom
The overall objective of modern UK standards and regulations for electrical wiring no longer differs substantially from regulations in the rest of Europe.
The overall objective of modern UK standards and regulations for electrical wiring no longer differs substantially from regulations in the rest of Europe.
Electrical wiring interconnection system
An electrical wiring interconnection system is the wiring system and components for a complex system.
An electrical wiring interconnection system is the wiring system and components for a complex system.
Electrician
An electrician is a tradesman specializing in electrical wiring of buildings, stationary machines and related equipment.
An electrician is a tradesman specializing in electrical wiring of buildings, stationary machines and related equipment.
Extension cord
An extension cord, power extender, or extension lead is a length of flexible electrical power cable (flex) with a plug on one end and one or more sockets on the other end (usually of...
An extension cord, power extender, or extension lead is a length of flexible electrical power cable (flex) with a plug on one end and one or more sockets on the other end (usually of...
E³.series
Zuken’s E³.series is a software for the creation of electrical and fluid designs, for wiring, harnesses, cable assemblies, control panels, hydraulics and pneumatics.
Zuken’s E³.series is a software for the creation of electrical and fluid designs, for wiring, harnesses, cable assemblies, control panels, hydraulics and pneumatics.
Fuse (electrical)
In electronics and electrical engineering, a fuse is a type of low resistance resistor that acts as a sacrificial device to provide overcurrent protection, of either the load or source circuit.
In electronics and electrical engineering, a fuse is a type of low resistance resistor that acts as a sacrificial device to provide overcurrent protection, of either the load or source circuit.
Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which other voltages are measured, or is a common return path for electric current, or a d...
In electrical engineering, ground or earth is the reference point in an electrical circuit from which other voltages are measured, or is a common return path for electric current, or a d...
Ground and neutral
Since the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely related.
Since the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely related.
Hardware
Hardware is a general term for equipment that can be touched/held by hand such as keys, locks, hinges, latches, handles, wire, chains, belts, plumbing supplies, electrical supplies, tools, utens...
Hardware is a general term for equipment that can be touched/held by hand such as keys, locks, hinges, latches, handles, wire, chains, belts, plumbing supplies, electrical supplies, tools, utens...
Home wiring
Home wiring is wiring in domestic use such as houses and gardens.
Home wiring is wiring in domestic use such as houses and gardens.
IEC 60038
International Standard IEC 60038 defines a set of standard voltages for use in low voltage and high voltage AC electricity supply systems.
International Standard IEC 60038 defines a set of standard voltages for use in low voltage and high voltage AC electricity supply systems.
IEC 60446
International standard IEC 60446 defines basic safety principles for identifying electrical conductors by colours or numerals, for example in electricity distribution wiring.
International standard IEC 60446 defines basic safety principles for identifying electrical conductors by colours or numerals, for example in electricity distribution wiring.
Industrial and multiphase power plugs and sockets
Industrial and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets.
Industrial and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets.
Junction box
An electrical junction box is a container for electrical connections, usually intended to conceal them from sight and deter tampering.
An electrical junction box is a container for electrical connections, usually intended to conceal them from sight and deter tampering.
Keystone wall plate
Keystone wall plates are primarily used in commercial and industrial buildings to cleanly attach telecommunication cables to a junction box, surface mount box, or a mud ring mounted in the drywa...
Keystone wall plates are primarily used in commercial and industrial buildings to cleanly attach telecommunication cables to a junction box, surface mount box, or a mud ring mounted in the drywa...
Knob and tube wiring
Knob and tube wiring was an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.
Knob and tube wiring was an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.
Live wire (electricity)
The live wire in an AC electrical circuit refers to the wire (in a single-phase system) which carries an oscillating voltage with respect to the earth.
The live wire in an AC electrical circuit refers to the wire (in a single-phase system) which carries an oscillating voltage with respect to the earth.
M13486
M13486 (MIL-C-13486 or MIL-DTL-13486) is a frequently used MIL-SPEC wire and a heavy duty vehicle and aircraft cable.
M13486 (MIL-C-13486 or MIL-DTL-13486) is a frequently used MIL-SPEC wire and a heavy duty vehicle and aircraft cable.
Mineral-insulated copper-clad cable
Mineral-insulated copper-clad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder.
Mineral-insulated copper-clad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder.
Multipoint ground
A Multipoint Ground is an alternate type of electrical installation that attempts to solve the Ground Loop and Mains hum problem by creating many alternate paths for electrical energy to find it...
A Multipoint Ground is an alternate type of electrical installation that attempts to solve the Ground Loop and Mains hum problem by creating many alternate paths for electrical energy to find it...
Multiway switching
In building wiring, multiway switching is interconnection of two or more electrical switches to control an electrical load from more than one location.
In building wiring, multiway switching is interconnection of two or more electrical switches to control an electrical load from more than one location.
National Association of Electrical Distributors
The National Association of Electrical Distributors (NAED) is the trade association for the electrical equipment distribution industry.
The National Association of Electrical Distributors (NAED) is the trade association for the electrical equipment distribution industry.
National Electrical Code
The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States.
The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States.
National Electrical Contractors Association
The National Electrical Contractors Association, or NECA, is a trade association in the United States that represents the $130 billion/year electrical contracting industry.
The National Electrical Contractors Association, or NECA, is a trade association in the United States that represents the $130 billion/year electrical contracting industry.
Pattress
A pattress or pattress box is the container for the space behind electrical fittings such as power outlet sockets and light switches.
A pattress or pattress box is the container for the space behind electrical fittings such as power outlet sockets and light switches.
Power cable
A power cable is an assembly of two or more electrical conductors, usually held together with an overall sheath.
A power cable is an assembly of two or more electrical conductors, usually held together with an overall sheath.
Power cord
A power cord is used to transfer power to an electrical appliance.
A power cord is used to transfer power to an electrical appliance.
Rat-tail Splice
The Rat-tail splice, also known as the Twist Splice, is a very basic splice that can be done with both solid and stranded wire.
The Rat-tail splice, also known as the Twist Splice, is a very basic splice that can be done with both solid and stranded wire.
Rat-tail splice
A Rat-tail splice, also known as a twist splice, is a very basic splice that can be done with both solid and stranded wire.
A Rat-tail splice, also known as a twist splice, is a very basic splice that can be done with both solid and stranded wire.
Receptacle tester
A receptacle tester or outlet tester is a device used to verify that an AC wall outlet is wired properly.
A receptacle tester or outlet tester is a device used to verify that an AC wall outlet is wired properly.
Residual-current device
A Residual-Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the electric current is not balanced between the energized cond...
A Residual-Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the electric current is not balanced between the energized cond...
Ring circuit
In electricity supply, a ring final circuit or ring circuit (often called a ring main or informally a ring) is an electrical wiring technique developed and primarily used in th...
In electricity supply, a ring final circuit or ring circuit (often called a ring main or informally a ring) is an electrical wiring technique developed and primarily used in th...
Ring ground
A ring ground is a type of electrical ground that is used to protect buildings and equipment from damage due to electrical surges.
A ring ground is a type of electrical ground that is used to protect buildings and equipment from damage due to electrical surges.
Shaft voltage
Shaft voltage occurs in electric motors due to leakage or capacitive coupling with the windings of the motor.
Shaft voltage occurs in electric motors due to leakage or capacitive coupling with the windings of the motor.
Shaft-Voltage
Shaft-Voltage occurs in motors powered by variable-frequency drives.
Shaft-Voltage occurs in motors powered by variable-frequency drives.
Soil resistivity
In such systems, the soil resistivity is a critical factor in overall system efficiency.
In such systems, the soil resistivity is a critical factor in overall system efficiency.
Spike buster
A spike buster is basically a Extension cord with a fuse.
A spike buster is basically a Extension cord with a fuse.
Steel Wire Armoured (SWA) Cable
Steel Wire Armoured Cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
Steel Wire Armoured Cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
Steel wire armoured (SWA) cable
Steel wire armoured cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
Steel wire armoured cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
Steel wire armoured cable
Steel wire armoured cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
Steel wire armoured cable, commonly abbreviated as SWA, is a hard-wearing power cable designed for the supply of mains electricity.
T-splice
The T-splice is a splice that is used for connecting the end of one wire to the middle of another wire, thus forming the letter "T." This splice is used with both solid and stranded wires.
The T-splice is a splice that is used for connecting the end of one wire to the middle of another wire, thus forming the letter "T." This splice is used with both solid and stranded wires.
Technical standards in Hong Kong
However, not all technical standards in Hong Kong are identical with their counterparts in the United Kingdom due to practical or some other reasons.
However, not all technical standards in Hong Kong are identical with their counterparts in the United Kingdom due to practical or some other reasons.
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution.
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution.
Tinsel wire
Tinsel wire is a form of low voltage electrical wire used when maximum mechanical flexibility is desired.
Tinsel wire is a form of low voltage electrical wire used when maximum mechanical flexibility is desired.
Trirated cable
Trirated Cable, its not a high temperature, flame retardant electrical cable designed for use in panel building.
Trirated Cable, its not a high temperature, flame retardant electrical cable designed for use in panel building.
Twist-on wire connector
Twist-on wire connectors are used to fasten two or more electrical conductors together.
Twist-on wire connectors are used to fasten two or more electrical conductors together.
Twisted pair
Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference from external sources; f...
Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference from external sources; f...
Wall outlet
AC power plugs and sockets are devices for removably connecting electrically operated devices to the power supply.
AC power plugs and sockets are devices for removably connecting electrically operated devices to the power supply.
Wall socket
AC power plugs and sockets are devices for removably connecting electrically operated devices to the power supply.
AC power plugs and sockets are devices for removably connecting electrically operated devices to the power supply.
Western union splice
The Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically terminate aerial conductors that were subject to loading stress.
The Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically terminate aerial conductors that were subject to loading stress.
Western Union splice
The Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically and electrically terminate aerial conductors that were subject to loading stress.
The Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically and electrically terminate aerial conductors that were subject to loading stress.
Wiring closet
A wiring closet is a small room commonly found in institutional buildings, such as schools and offices, where electrical connections are made.
A wiring closet is a small room commonly found in institutional buildings, such as schools and offices, where electrical connections are made.
Wiring diagram
A wiring diagram is a simplified conventional pictorial representation of an electrical circuit.
A wiring diagram is a simplified conventional pictorial representation of an electrical circuit.
Zero-ground
Zero-Ground is a unique grounding system used to address high-frequency noise of adjustable speed drives, and Variable Frequency Drives.
Zero-Ground is a unique grounding system used to address high-frequency noise of adjustable speed drives, and Variable Frequency Drives.
Zip-cord
Zip-cord refers to 2 or more electrical conductors held together by an insulating jacket that can be easily separated simply by pulling apart.
Zip-cord refers to 2 or more electrical conductors held together by an insulating jacket that can be easily separated simply by pulling apart.